Re:Belajar merakit power amp untuk beginner/ pemula

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Re:Belajar merakit power amp untuk beginner/ pemula

Sableng@
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Joined: Aug 2010

07-01-2011, 12:33 AM

awi link=topic=3315.msg37691#msg37691 date=1294274239 Wrote:Master2 elektro, saya baru belajar perbaiki ampli.
Saya blajar perbaiki power blazer 300w.
Power amp bisa bersuara normal, tp jika volume power dimatikan, ada suara kresek2.
Dan jika power amp baru dinyalakan, konus speaker maju kedepan dan turun perlahan. Padahal power yg sebelah kanannya tdk begtu.
.
O ya, saya coba ukur tegangan DC pada terminal speaker (tanpa suara) ,
pd power jalur kiri (power yg bermasalah), tegangannya bermain acak/berubah2 antara 2 sampai 7 volt.
Sedangkn jalur kanannya (yg normal) , tegangannya 0 volt.
Semua tr dan Dioda zener normal, apalgi yg dicurigai ni :( ?
Mohon bantuannya !
Thanks

wah itu seh gawat mas.....Mungkn takut sama avatarnýa kali mas... :D

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